Disk harrow.



No. 632,479. Patented Sept. 5, |899. W. H. TRAPHAGEN.

DISK HABROW.

(Application tiled Apr. 17, 1599.)

(No Model.)

Nrrnn ST1-vries A'rn rtree.

IVILL'IAM H. TRAPHAGEN, OF ROOKFORD, ILLINOIS, ASSIGNOR TO EMERSON MANUFACTURING COMPANY, OF SAME PLACE.

DISK HARROW.

SPECIFICATION forming part of Letters Patent No. 632,479, dated September 5, 1899.

Application inea .iprn 17, 1899.

To all whom, it may concern:

Be it known that I, WILLIAM H. TRAPHA- GEN, a citizen of the United States, residin'g at Rockford, in the county of IVinnebago and State of Illinois,.have invented certain new and useful Improvements in Disk Harrows, of which the following is a specification.

This invention consists in a disk harrow in which the tongue has an adjustable connection with the main frame in order that the pivot upon which the gangs are swiveled may stand at right angles to the ground in order that in swinging the gangs the disks at both ends of a gang will cut the same depth.

This invention consists in a disk harrow composed of gangs which are operated each by a hand-lever and operated together by one hand-lever by connecting the hand-levers.

This invention consists in a scraper-bar supported in loops7 one stationary and the other having a pivotal connection with the main frame.

This invention consists in certain details of construction hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a plan view of a disk harrow embodying my improvements. Fig. 2 is a lengthwise section. Fig. 3 is an isom etrical representation of the upper portions of the hand-levers connected together. Fig. a is a section of the bracket 2O and the parts connected therewith.

The main frame consists of the T-bar 1, its ends pivotally connected with the gangs. To the center portion of the T-bar are secured two bars 2 and 3 and extending forward therefrom, their free ends connected by a cross-bar 4, having a recess 5 for the reception of the tongue 6, which is held in` place therein bya bolt '7. To these bars 2 and 3 is secured a cross-bar 8, having two uprising ears 9, which are perforated, and brace-rods 10 connect this bracket with the depending ends of the T-bar. Toothed segments 11 are secured to the upper surface of the bars 2 and 3. The segments have hand-levers 12 connected therewith and provided with the usual actuated springplunger and thumb-lever 13. The hand-levers have extensions 14. A collar 15 surrounds the support of the disks of the gang-frame, from which rises an arm 16 and extends an arm 17. A rod 18 connects the arm 17 and the extension 14 of the hand-levers. To the arm 16 is secured a bar 19, and to the bar Serial No. 713,328. (No model.)

is secured a bracket 20, having horizontal vertically-perforated extensions 21. A bar 22 has a downward extension 23 at its rear end and tted to enter the openings in the arms 21 of the bracket 2O and is located over the axial center of the gang. The forward ends of the arms 22 are guided in the loops 2-1C extending from the bars 2 and 3 of the main frame. Rollers 25 are secured to the front face of the T-bar 1 and receive the pressure of the bars 22. To the upper end of the bar 19 is secured a guide 26, and to the curved ends of the T-frame are pivoted guides 27. These guides support the scraper-bar 28. A rod 29 connects the bracket 2O with the extensions 14 of one of the hand-levers l2.

Each gang can be operated independently of the other, each by its own hand-lever, and when it is desirable to operate them together a link 30, having iianges 31 embracing the edges of the hand-levers, is located between them, and a bolt 32 clamps them together. From one end of this link extends a projection 33, which engages the thumb-lever 13 of one hand-lever and holds the plunger out of engagement with the toothed segment, and by means of either hand-lever both gangs can be operated together.

I claim as my invention- 1. In a disk harrow, the combination of two disk gangs, a hand-lever and toothed segment for each gang, and means connecting the levers and holding one of the levers out of engagement with its toothed segment.

2. In a disk harrow, the combination of two disk gangs, ahand-lever and toothed segment for each gang,a connection between the levers having a projection for holding the thumblever of one of the levers so that the lever is free of its toothed segment.

3. In a disk harrow, the combination of a main frame, two disk gangs the inner end of each gang having a connection with the main frame, the connection consisting of a bar guided in connection with the main frame, a roller supported by the main frame receiving the bar, the rear end of the bar having a pivotal connection with. the gang over its axial center.

WILLIAM H. TRAPHAGEN.

Witnesses:

A. O. BEHEL, E. BEHEL.

IOO 

